here has also been an arrest in the case of the poisoned letters that were mailed to president obama and a u.s. senator. today, the f.b.i. confirmed that the letters tested positive for ricin. tis, wspect, 45-year-old paul kevin curtis, was arrested at his home in mississippi. court papers say he has distrusted the government for years. the tainted letters were intercepted at a postal facility entmaryland. ne president was never in any danger. in this terrib week r the the pride they have in theirnse city and their country. before the bruins faced the buffalo sabers last night, singer rene rancourt invited the crowd to join him in the national anthem. and, boy, did they. ♪ through the perilous night . ♪ ♪ >> pelley: 17,000 voices singing as one. why would somebody run toward danger? ar'll speak with one of the heroes will of the marathon ar'll speak with one of the as a preferred pharmacy, walgreens can save you as much as 75% compared to other select pharmacies. walgreens, at the corner of happy and healthy. how did i know? well, i didn't really. see, i figured low testosteron